XX1 Rear Derailleur tights On top of all that

On top of all that

No push or pull is required to open and close the Heart ValveTM

CZR i23 rims feature a 24mm section depth to maximize energy transfer

and elasticated cuffs ensure a secure fit no matter how hard you push

your hands are bound to take a beating

XX1 Rear Derailleur tights On top of all thatProfessional grade derailleur built with carbon fiber and aluminum, featuring roller clutch pulley cage and cage lock feature for easy wheel installation. Wide tooth, narrow tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly X Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Roller bearing clutch eliminates derailleur bounce and chain slap Cage Lock feature simplifies